Excalibur.
The legendary sword of King Arthur, having magical properties.
Meaning & usage
The legendary sword of King Arthur, having magical properties.
Where this word comes from
From Middle English Excalaber, from Old French Escalibor, Escaliborc, prothetic form of Calliborc, alteration of Calibourne, from Medieval Latin Caliburnus (Geoffrey of Monmouth, ca. 1136), influenced by calibs (“steel”) (for chalybs), alteration of Old Welsh Caledbulch (compare modern Caledfwlch), compound of caled (“hard”) and bwlch (“cleft, crack”). Related to the Irish legendary sword Caladbolg, literally ‘hard-belly’, i.e. ‘voracious’.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.